Cool!!
Does he like telescopes? I built my first one when I was 12 with purchased mirror then made my own mirror the next year. I also got a "job" at the planetarium and ran some shows.
The major techie mag is "Sky and Telescope" - I'd get subscription. There are a lot of resources listed in S&T and on their site. Looking through the mag, he can decide what he wants to study further.
If you do family trips, you can look up the local U to see if they do tours. You can also visit the big telescopes around the country and the various NASA installations.
http://www.skyandtelescope.com/ Id' rent this DVD and get the book:
http://www.imdb.com/title/tt0132477/He'll love these books:
http://www.madscientistsclub.com/Space missions:
http://voyager.jpl.nasa.gov/http://solarsystem.nasa.gov/galileo...f226-F8A65A9C-EBB1-E9E1-7027B6574729D5F0
